CBCT in Parallel

Yes, CTs can be connected in parallel but provided that it polarities have been taken care of,

for earth fault we need to have only one CBCT, for REF we need one CBCT and one simple CT for neutral current,

better if u can elaborate ur question

regards

Divyesh patel

"for REF we need one CBCT and one simple CT for neutral current"

This is absolutely wrong.We need ordinary ct & neutral ct for ref protection.To be precise we dont need cbct for ref.Pls educate yourself & dont put others in confusion.